Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Tallahassee, FL

March 18, 2021Taylor County, Florida

NWS Tallahassee, FL issued this special weather statement at Mar 18, 2021, 11:49 AM EDT for Taylor County, Florida. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Mar 18, 2021, 11:49 AM EDT (15:49 UTC)
Expired
Mar 18, 2021, 12:30 PM EDT
In force
41 min
Issued by
NWS Tallahassee, FL

County Taylor County, FL

The radar

The Tallahassee radar (KTLH), 85 km from the middle of the area, began a volume at 15:48 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 3.8 hours before the alert went out and 198 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Jacksonville, FL at 12:00Z on 2021-03-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 162 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jacksonville, FL at 12:00Z on 2021-03-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 183 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
162 J/kg
Mixed-layer CIN
-183 J/kg
Mixed-layer LCL
888 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
183 m²/s²
0-3 km storm-relative helicity
220 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted.

921 
WWUS82 KTAE 181549
SPSTAE

Special Weather Statement
National Weather Service Tallahassee FL
1149 AM EDT Thu Mar 18 2021
 
FLZ019-028-029-128-181630-
Inland Taylor FL-Madison FL-Coastal Taylor FL-Lafayette FL-
1149 AM EDT Thu Mar 18 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN LAFAYETTE...TAYLOR
AND SOUTHWESTERN MADISON COUNTIES UNTIL 1230 PM EDT...

At 1149 AM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from 16 miles west of Perry to 42 miles west of
Steinhatchee to 47 miles southeast of St George Island. Movement was
east at 35 mph.

Winds in excess of 40 mph will be possible with these storms.

Locations impacted include...
Perry, Pinland, Jug Island, Eridu, Cabbage Grove, Scanlon, Dekle
Beach, Jack Lee Island, Foley, Salem, Perry-Foley Airport, Hampton
Springs, Shady Grove, Cedar Island, Fish Creek, Howell Place, Iddo,
Secotan, Boyd and Smith.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

A Tornado Watch remains in effect until 100 PM EDT for Big Bend of
Florida.

LAT...LON 2960 8349 2969 8363 2987 8375 2999 8397
      3027 8387 3028 8384 3031 8382 3030 8327
      2961 8346 2958 8349
TIME...MOT...LOC 1549Z 252DEG 30KT 3016 8385 2949 8406 2910 8442 

$$

The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 18, 4:18 AM EDTSpecial Marine WarningTAE3 hr
Mar 18, 4:45 AM EDTSpecial Weather StatementTAEHolmes, Walton75 min
Mar 18, 5:29 AM EDTSevere Thunderstorm WarningTAEHolmes, Walton, Washington61 min
Mar 18, 6:40 AM EDTSevere Thunderstorm WarningTAEBay, Walton, Washington64 min
Mar 18, 6:44 AM EDTSpecial Marine WarningTAE3 hr
Mar 18, 7:02 AM EDTTornado WarningTAEBay, Washington28 min
Mar 18, 7:05 AM EDTTornado WarningTAEBay, Calhoun, Gulf40 min
Mar 18, 7:19 AM EDTSevere Thunderstorm WarningTAEBay, Calhoun, Franklin, Gulf, Holmes, Jackson and 2 more86 min
Mar 18, 7:48 AM EDTTornado WarningTAEBay, Gulf27 min
Mar 18, 8:19 AM EDTSevere Thunderstorm WarningTAECalhoun, Franklin, Gadsden, Gulf, Leon, Liberty and 1 more56 min
Mar 18, 8:24 AM EDTSevere Thunderstorm WarningTAEGadsden, Leon, Liberty51 min
Mar 18, 9:08 AM EDTSpecial Marine WarningTAE2 hr
Mar 18, 9:11 AM EDTSevere Thunderstorm WarningTAEFranklin, Gadsden, Gulf, Jefferson, Leon, Liberty and 1 more64 min
Mar 18, 10:07 AM EDTSpecial Weather StatementTAEJefferson, Wakulla38 min
Mar 18, 10:52 AM EDTSpecial Weather StatementTAEJefferson, Madison53 min
Mar 18, 11:04 AM EDTSpecial Marine WarningTAE116 min
Mar 18, 12:36 PM EDTSpecial Weather StatementTAEDixie, Lafayette84 min
Mar 18, 12:55 PM EDTSpecial Marine WarningTAE110 min
Mar 18, 1:21 PM EDTTornado WarningTAEDixie, Lafayette, Taylor24 min
Mar 18, 1:44 PM EDTSevere Thunderstorm WarningTAEDixie, Lafayette31 min
Mar 18, 2:06 PM EDTSpecial Weather StatementTAEDixie39 min
Mar 18, 7:01 AM EDTSevere Thunderstorm WarningTAECalhoun, Clay, Early, Miller, Seminole59 min
Mar 18, 7:32 AM EDTTornado WarningTAEEarly43 min
Mar 18, 7:55 AM EDTSevere Thunderstorm WarningTAEBaker, Calhoun, Clay, Dougherty, Early, Quitman and 2 more65 min
Mar 18, 10:41 AM EDTSpecial Weather StatementTAEBen Hill, Berrien, Brooks, Colquitt, Cook, Irwin and 5 more94 min
Mar 18, 12:12 PM EDTSpecial Weather StatementTAELanier33 min
Mar 18, 4:34 AM EDTSpecial Weather StatementTAECoffee, Dale, Geneva, Henry86 min
Mar 18, 6:04 AM EDTSevere Thunderstorm WarningTAECoffee, Dale, Henry, Houston56 min
Mar 18, 6:26 AM EDTTornado WarningTAEDale, Henry, Houston49 min
Mar 18, 7:15 AM EDTTornado WarningTAEHenry30 min

Nearby

Special Weather Statements in Florida, 2021Every special weather statement in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.